Machine for filling shoe-bottoms.



W. D. BAKER.

MACHINE FOR FILLING SHOE BOTTUIVIS.

W. D. BAKER.

MACHINE FOR FILLING SHOE BOTTOMS.

APPLICATION man 1uLvY1o. 1912.

Patented 0cm?, 1916.

' zsHEETs-SHEET 2.

@ven-Lor f @Wfw'vmv- I dit" @u W. n. BAKER.

MACHINE FOR FILLING SHOE BOTTOMS. APPLlcATloN FIL-ED 1uLY1o,|912.

1,201,6M., i Patented oct. 17,1916.

YSHEETS-SHEET 3.

lieven-w74 r Z9 rf/WM W. D. BAKER.

MACHINE FIR FILLING SHOE BOTTOMS.

APPLICATION FILED IuLYI0.19I2.

19201,@74, Pmenfed OCI.. 17,19%.

YSHEETS-SHEET 4.

W. D. BAKER.

MACHINEv FOR FILLING SHOE BOTTOMS.

APPLICATION FILED JULY 10,1912.

1.201,6?4. Patented 001;. 1751916.

TSHEETS-SHEET 5.

W. D. BAKER.

MACHINE FOR FILLING SHOE BQTTOMS.

APPLICATION `r'|LED1uLY1o.19x2.

Patented Oct. 17, 1916.

HEETS--SHEET 6.

M11/ine @66.5"

W. D. BAKER.

MACHINE FOR FILLING SHOE BOTTOMS. APELIcATloN FILE-D JULY I0. 1912.

Patented 001;. 17, 1916.

sHEETs-SHEET 1.

ggg. 17.

War/QA@ UNiTnD STATES PATENT oFFIoE.

WINTHIROP D. BAKSER, OF ABINGTON, MASSACHUSETTS, ASSIGNOR TO BOSTONBLACK- ING COMPANY, 0F EAST CAMBRIDGE, MASSACHUSETTS, A CORPORATION OFMAINE.

MACHINE FOR FILLING SHOE-BOTTOMS.

Specification of- Letters Patent.

`Patented Oct. 17, 1.916.

Application filed July 10, 1912. vSerial No. 708,567.

To all whom t mag/concern:

Be it known that I, WINTHROP D. BAKER,

shoe bottoms and packing the material there- Y in. The filling materialusually employed is of a` plastic nature and it is laid in the usualcavity on the outside of the inner sole in order to give they propersolidity to the shoe.

IOne of the objects of this inventionis to provide improved means forkeeping the material in proper condition of consistency to be laid inthe cavities of outer soles or shoe bottoms.

Another object is to provide improved means for supplying the materialor 4forcing itvoutv through a gateway or opening in ribbon-like form andlaying it in the cavity.

A further object is to provide means vrfor automatically presenting theshoe bottoms to receive the material and carry them under mechanism forpacking and leveling the material. j

` Further objects are to provide improvements which I shall now proceedto describe and claim.

Of the accompanying drawings: Figure 1 is a vertical elevation of themachine, partly broken out orv in section, the roll pressing mechanismbeing omitted to avoid complexity; Fig. 2 is a perspectiveview ofmaterial-supply mechanism; Fig. 7 is a de` tail illustrating the meansfor adjusting the last jack carrier to properly position the p carrierfor different lengths of shoes; Fig.

8 is a detail plan view, partly in section, of the pressing rolls; Fig.l9 is a detail similar to a portion of Fig. 1, but on a larger scale;Fig. 10 represents a section on line 10-10 of Fig. 9; Fig. 11 is a viewsimilar to a portion of Fig. 9, on a larger scale, and partly broken outlor in section; Figs. 12,

13 and 14 are detail views, partly in section,

ofy the .gate mechanism; Fig. 15 is a detail plan vlew of the portion ofone of the last jack carriers which acts to open the gate ;4 Figs. 12to15 inclusive'are on a larger scale; Flg. 16 is a detail elevation of acam car# rying disk for effecting the gate valve operation; Fig. 17 isan edge view of the same;

.jack carrier, which will be hereinafter preferably referred vto as thespider. Said spider comprises the hub 22 mounted on the shaft 21 andhaving in this instance four arms 23 (Figs. 1 and 9). The hub 22 isloose on the shaft for a purpose hereinafter described. Fast on theshaft 21 is a ratchet 24 (Fig. 5), and loosely mounted on the shaftadjacent the ratchet is a bell crank 25, one arm of which has pivotedthereto a pawl 26 to cooperate With said ratchet. A spring 27 connectsthe pawl with the other arm of the bell crank to normally hold the pawlagainst the ratchet. The bell crank is connected by a rod 28, which ispreferably adjustable in length, as indicated in Fig. 1, to a lever 29(see also Figs. 3 and 4) vpivoted on a shaft ,30 mounted in the frame ofthe machine.

The lever 29 is provided with a roll which is acted upon by a cam 31carried by a shaft 32, the latter being connected by bevel gearing 33(Fig. 1) with a verticalshaft 34 which is driven, through bevel gearing35, by a shaft 36 mounted on the hopper structure which will hereinafterbe described. The shaft 36 is provided with a worm gear 37 which isdriven by a worm 38 on shaft 39, the latter being driven by any suitablemechanism, not shown.

A cam 40 '(Fig. 5) loosely mounted on shaft 21 engages a pin 41 of thepawl 26, said cam having an arm 42 connected by a link 43 with a treadle44 (Figs. l and 4). A spring 45 is connected at one end to the.treadleand has its other end connected to 60 out of engagement with theratchet segment a suitable fixed pin so as to act to normally hold thetreadle in the position shown in Fig. 4. When in raised position thecani 40 acts on the pin 41 to throw t-he pawl 26 away from the ratchet24 so` that as said pawl oscillates, the ratchet and shaft -21 and itsarms may remain stationary. When the treadle is depressed, however', thecam 40 moves to the position shown in Fig. 5, thus releasing the pawl sothat its spring 27 will. carry it into position and cause its nextoscillation to impart a one-step rotation to the shaftand the arms 23.As hereinafter described the` arms 23 are connected to rotate with theshaft, although the hub 22 is loose on the shaft to enable said hub andthe arms 23 to be adjustably connected to the shaft when shoes ofdifferent length are' to be treated.Y v

As best shown in Figs. 9 andl 11, each spider arm 23 has a jack arm 46pivotally connected to it .at 47. The arm 46 is outwardly bowed and atits outer end is formed withv ways 48 (Fig. 10) in which is slidablymounted a block 49. The block 49 is integral with or rigidly connectedto a screw 50 which is adapted to move longitudinally of asocketI orrecess in the arm 46, said screw having a longitudinal groove or slot 51which receives a Apin or screw 52to prevent said screw from rotating. Bymeans of a handnut 53 on said screw t-he screw and its block 49 can beadjusted so that the pivot 54 at the outer end of the block may beshifted in a direction substantially radial to the axis of rotation ofthe. spider. Mounted on the pivot 54 is a block 55 havt ing a pinindicated by dotted lines in Fig.

9, which pin is adapted to enter the shoe last socket, this constructionenabling .a last and the partially completed shoe thereon to be quicklyremoved from'or applied to the, intermittently rotatable jack. The block55 is provided with an arm 56, pivotally con. nected to which is aplunger 57 entering a socket in the block 49, a spring 58 in said socketacting to press the plunger 57 outwardly and rock the block 55 on itspivot so that the toe of the shoe will be held upon the toe rest padhereinafter described. Each jack arm 46 has a ratchet segment 59 rigidlyconnected thereto, said ratchet segment being engaged by a pawl 60ypivoted at 61 to the next arm 23 behind the arm 46 carrying saidsegment.rll`he pawl 60 has a tail piece 62 adapted to engage, a suitably mountedfixed pin 63 (Fig. l) so that as the spider rotates, whenever a tailpiece 62 passes the pin 63 the pawl 6() is automatically thrown 59,leaving the arm 46 free tobe pulled backwardly by a spring 64. Thisaction occurs each time that the spider receives its partial rotationand brings a shoe with its cavity filled around to positlon to beredetent 70 has its inner end beveled to engage the ratchet teeth 67,its outer end being connected to'a lever 71 pivoted at 72 and having itsinner end adapted to be engaged by a lever 73 pivoted at 74, the otherend of said lever 73 being acted upon by a spring 75 mounted inthe arm23 and having its other end', bearing against the inner end of the slide66. The spring 75 acts both to press the slide 66 outwardly and to rockthe lever 73 s'o that the latter will be held in engagement, with theinner end of lever 71. Said lever 71 is provided with a suitable spring,such as indicated at the upper end thereof in Fig. 11, to normally holdthe detent 70 in the position shown in said Fig.

11. The lever 73 is connected by a rod 76 with the jack arm 46 so thatwhenever the 'jack arm 46 is released by the pawl 60, as

-other one is to take its place, by fitting the socket of the last onthe pin of block 55 the toe is pressed down upon the pad 69 until thelevel of its bottom is substantially fiush with the face of the wedgetip 65. If the toe be thick it will press the slide 66 down farther thanif the toe is a low one. As soon as the arm 46 is thrown forward andlocked by the pawl 60, the connecting rod 76 115 transmits motion fromarm 46 to the lever 73, the latter then releasing lever 7l so that thespring of the latter will cause the detent 70 to move inwardly andrengage the toothed slide 66 'andthus rigidly support 120 said slide andthe toe pad 69.

To lock the spider so that the jacks will be properly located at the endof each intermittent forward motion, 4a circular plate or disk 77 (Figs.3 and 6) is rigidly secured to 125 in Fig. 3, the said lever beingmounted on a pivot 82 carried by the frame. The arm 79A carries a lug 83aclaptedto engage any of the notches 78. Secured to or carried by thedisk 77 is a brake hub 84, 'which is engaged by a brake band 85 havingone end connected at 86 to the frame 20 and having its other*A 'endconnected to the arm 80. A spring 87 connected to the arm 80 acts, whenpermitted to do so, as hereinafter described, to carry the locking lug83 into a notch 78 and at the saine` time tighten the brake band uponthe, brake hub. The arm 81 carries an adjustable contact screw 88 whichis in the path of movementof a lug 89 projecting* from oneof the armslof the yoke shaped roll frame 90 hereinafter described. In Fig. 3 theroll frame is in its-upper position, and the lug 83 is retracted-and thebrake band is'suiiiciently loosened, to permit the spider to be given aone-fourth rotation. But ras soon as the spider has advanced ashereinafter described and the roll frame swings downwardly, the lug 89leaves the screw 88 so that as soon as the next notch 78 comes oppositethe lug 83, the spring 87 will apply the brake and cause the locking lugA83 vto enter the next notch 78. f

Before describing the roll mechanism I will explain the means foradjusting the spider relatively to the shaft 21 so that the l;

'91, the outer end of which carries a springpressed pin 92 adapted to beprojected later' ally by its spring to engage any one of a series ofholes93 in one of the arms 23. The operator, when the sizes of shoesbeing treated are changed, can Withdraw the pin 92 and grasp the spiderwith one hand, ro= tateV or adjust it upon the shaft 21 inone directionor the other to bring a different hole 93 into line with the pin 92, andthen release said pin to again lock the spider so that, al though itsposition has been changed or adjusted on the shaft, it will berotatedstep byy step by the mechanism shown in Fig. 5 and hereinbeforedescribed.

Referring to Figs. 3, 4 and 6, the roll frame 90 is U-shaped and hasitshubs 94 loosely mounted on shaft 21. One of the hubs 94 has an arm 95connected by an adjustable connecting rod 96 with a lefverp97 pivoted onthe shaft 30, said lever having a roll 98 engaging a cam groove 99 inthe side of a disk 100 secured on shaft 32. In order to avoid strainupon these connections due to the weight of the frame 90 and the rollscarri'ed thereby, said frame 90 is preferably counter-balanced as by aspring I01 connected to said frame 90 and to a suitable fixed portion ofthe machine. A roll carrier 102 is xed to a shaft 103 mounted in frame90jsaid carrier supporting a'roll 104 mounted on a shaft carried by aswivel frame 105 which is pivoted at 106 to the carrier 102, suitablestops-107` being provided -to--limit the swiveling motion of the saidframe 105 relatively to the carrier 102 '(see Fig. 48). The shaft 103has an arm 108 connected by a spring 109 to a lug 110 of frame 90, saidspring, when permitted to do so, causing the shaft 103 and theroll 104to swing so that the roll will kbear upon the forepart ofthe shoebottom. Also secured to shaft 103 isa bell crank lever 111, 112 (Fig.3). The arm l11'has a pin or roll engaginga slot 113 in an arm 114`pivotally supported at l115` as.

' carry the roll 104 into contact with the shoe bottom. Further movementof the-frame 90 vin the samedirection causes the roll 104 to followalong the contour of the sole-bottom, thevarms 111,112 then riding alongthe slots 113, 116 until the roll of arm 112 reaches the inner end ofslot 116 and is stopped thereby. A little further movement of the frame90 in the same direction causes the roll 104 to leave the .wol-k,because of the stoppage of arm 112 by the inner end of slot 116, theshaft 103 necessarily rocking and causing the roll 104 to rise' from thework, the parts being so proportioned that this occurs when the roll 104has just reached the toe end of 4the cavityY to be'filled. On the returnor upthe Amaterial backwardly somewhat toward the shank. At the extremeupward movement'iof the frame 90 the'roll of arm 111 reaches the upperend of the slot 113 of arm 114, thus causing the shaft 103 to rock in adirection to raise the roll 104 from the Work; It may be stated herethat the operations of the different Iparts of the machine are so timedthat the spider and the jacks are nextl given a one-fourth rotation andanother piece of work brought to position to be acted upon bythe rolls.

Another roll 118 which is positioned and adapted to act upon the shankportion of thc filled cavity is carried by a swivel frame 119 similar tothat which supports the roll 104. Said frame 119 is swiveled to a yoke120 which. is mounted loosely en .the shaft 103. Lugs 121 ofthe frame105 of roll 104`bear upon the under side of yoke 120 so that the latterand the roll 118 will follow swinging movements vimparted to theforepart roll 104. In order to cause the roll 118 to bear yieldinglyupon the work with more pressure than might result from gravity alone, aspring 123 is mounted between a bar 122 carried by the yoke 120 and alug 124 projecting from the end of frame 90.

As hereinafter explained the material which is used to fill the cavitiesis of a nature which would be liable to stick to the rolls if said rollswere not lubricated in some manner. 1 have provided for such lubricationbya small supplyv of water. In Fig. 8 the rolls 104, 118 are shown `ashollow with small perforations in their peripheries, said rolls beingmounted upon hollovsT perforated shafts with which flexible pipes 1 25are connected, said flexible pipes being connecte'd to a suitable watersupply pipe 126, the iiow being controlled by a suitable valve 127, suchas a needle valve. The rolls 104, 118 are filled with suitable porousmaterial such as felt. rlhe rolls receive no heat from the steamemployed. in the machine and they 'may be therefore mentioned as cool..The water however besides serving to lubricate the surfaces of therolls as above described serves also to keep the rolls amply cool toprelvent the material from sticking. to the rol s.

1 Will now describe the mechanism for supplying and forcing the llingmaterial, referring especially toFig. 1. Ahopper 128 is suitably mountedupon thetop ofthe main frame 20, said hopper having a steam` jacket 129,which ofcourse is provided with suitable inlet and outlet connections.r1`he cover for said hopper comprises a main section 130 a portion ofwhich is elevated to form a'hood 131. Adoor 132 hinged at 133 and havinga suitable catch 134 enablesthe material to be supplied to the hopper ashereinafter described. The hood 131 is provided with a vertical bearing135 for the shaft 136, which extends down into the hopper and isprovided with a spiral rib or forcer 137 Iand with stirrer Iarrns 138.The upper end of the shaft 136 has a bevel pinion 139 meshing with abevel pinion 140 on shaft 36.' The cover 130 is formed withl a steamspace 141 having suitable inlet and outlet. the inner wall of said spacesupporting hollow arms 142 which are plugged at their outer ends andopen at their inner ends to connect with said steam space so that saidarms may be kept at the proper temperature. The composition which' isused for the filling is preferablymolded in block form, as shown at a inFig. 2, said block hav- 1,201 ,eve

ing recesses or holes a to enable the block, or several of them, to beslid upon the horizontal hollow arms 142 when the top 132 is open. 1npractice I preferably provide three of the arms 142 on each side of thebearing 135, so that the two sets of three arms each will support twoblocks a, one at each side of tne bearing 135. The heat imparted to theblocks slowly softens or melts the material se that it drips down intothe hopper, and isythere kept stirred up by the arms 138 and graduallyforced down by the spiral 137 to the bottom of the hopper and throughthe `throat thereof into the discharge chamber 143, which is providedwith a suitable steam jacket 144 and a nozzle 145, the gate mechanism ofwhich will'be described hereinafter. A bearing 146 is provided for ahollow shaft 147, the outer end.

of which is provided with a bevel pinion 148 meshing with a bevel pinion149 on vertical shaft 34. A sleeve 150 is connected to the keep thematerial in proper condition for beingforced through the. nozzle, as bymeans of a small steam pipe 153 formed as a loop and located in thehollow shaft 147. j

When the machine is in operationv and steam at proper pressure supplied,the material will be softened or melted and kept under agitation andforcing pressure from the time it leaves the block a until it is forcedout through the nozzle and the gate presently described, the `materialpassing out in ribbon-like. form and being laid in the cavities of theshoe bottoms as they pass successively under the gate.

1t is to be understood that the steam jackets of Athe hopper and of thedischarge chamber and of the nozzle 145 communicate by suitable passagesso that all drioor water of condensationy will descend to the lowestpoint. To permit such water to be drawn off, a suitable outlet isprovided at `154 (Fig. 1).

the edges of the sliding gate valves 156, said gate valves being shownin Fig. `12 as acting to' close the outlet while Fig. 1 3 shows them asparted to provide an opening for the ribbon-like strip ofcompositionmaterial. The sliding valves 156 are provided l Y -of whichwill' be presently described. A

with downwardly projecting studs or pins 157, which are in the path ofmotion of movable latches 158, as shown by comparing Figs. 12 and 13.Said latches are provided with abrupt end shoulders 159 and with fingers160 projecting beyond said shoulders. The latches are pivoted at 161 toradius arms 162, which in turn are pivoted at 163 vthe wedge tip entersbetween two rolls 168 which are preferably tapered, as shownv in Fig.14, in order to' relieve pressure on instep portions of the shoe whenthe latter passesthrough. The rolls 1684 are mountedl on pms 169projecting downwardly from the inner ends of the latches 15,8. The tworolls are preferably arranged to shift longitudinally upon' theirpins'169 against the action of springs 170 confined between heads of the pinsand internal shoulders of the rolls. The rolls are externally grooved at171, the object of this construction being to permit the rolls to shiftsomewhat, against the action of the contained springs, when the shoe ispassing between said rolls, to prevent rubbing action on the sides ofthe shoe.

As shown in Fig. 15, the wedge tip 65 is formed with shoulders 172 onopposite sides thereof, and with inclined or tapered sides 173 at therear of said shoulders. vPivoted at 175 to this portion ofthe wedge tipare cam strips 174 having toes 176,"the purpose contraction spring 177connects arms 178 of the cam strips so as to normally. hold the longarms of said cam strips ou'tw ly.

When the shoe is placed in position, as ereinbefore described, its toeportion is pushed j forward to engage the toes .1.7 6 of the cam stripsand draw the latter inwardly .underf' the welt. Then as the machineoperates and the wedge 65'passes between the rolls 168- and parts thelatter, the inclined sides 1731' open the gate valves very slightly orto a preliminary extent as presently described, and the outer edges ofthe cam strips 174 follow along the grooves 171-of the rolls. Theshoulders-172 are sufiiciently abrupt so thatl when they reach the rolls168 they act to swing the latches 158 from the positions shown in Fig.12 to the'positions shown in Fig. 13 so as to carry the shoulders 159-t0positions to engage4 the studs or pins 157 of the gate valves 156. Thenfurther move--` nient of the shoe causes the rolls 168 to be' acteduponl by the inclines 173 and the cam 65 strips 174 sol as'to be furtherspread apart,

as shown-in Fig. 13, so that the gate valves are opened and permit thecomposition material, which is under constant forcing pressurev ashereinbefore described, to pass out in ribbon-like form and be laid inthe cavity of the shoe, the width .of the ribbon gradually widening andthen narrowing so as to shape the ribbon to it the cavity. lVhen theshoe passes through so that the cam strips 174 leavethe rolls 168, therolls .1.68 then follow along the return tapering sides of the shoes 4soas to gradually release the gate valves. It will be understood of coursethat during thefurther movement of each shoe it passes under the rolls104, 118, which, respectively, act chiefly upon the forepart and shankto compact or compress the ribbon of material in the cavity of the shoebottoml inside of the stitch receiving rib of the sole. 4The compositionor material is of such a nature that it is desirable that the gatevalves shall be caused to positively close to cut. offthe ribbon,instead of depending upon a spring or springs to close them. Themechanism for doing this includes a cam l disk 179 (Figs. 13,16 and 17),which is se- -screws 1,82. This structure provides for interchangeablysecuring cam blocks of different forms to accord with different sizes orshapes of shoe, and it also enables said' Y blocks to be reversed or sethalf way around from the position shown in Fig. 13 for a purposepresently described.- One side of each block 181 is formed with a shortcam projection 183 and the other side With a longer and almore gradualcam surface 1.84. With the blocks set as shown in Fig. .13 the long sideoredge 184 ,acts upon a roll 185 carried by an arm 186 at the lower'endof a vertical rock-shaft 187 in Fig. 3, said shaft being mounted in`bearings provided in a bracket 188 attached to -the main frame 20. Atthe upper end of said vertical rock-shaft is an arm 189 which isconnected by a link '190 with one arm of an elbow lever-'191.

There is also a Second or companion elbow lever 192, said two elbowlevers being pivoted atv 193 to the bracket 164, the two elbow leversbeing connected by gear segments 194 lto operate simultaneously.

Thefree ends of the elbow levers 191, 192

\ are provided with cam'fingers 195 which are liso v position shown inFig. 12. Further movement however of the free ends of the elbow levers191, 192 toward each other, under the impulse of the cam 184 and theconnections hereinbefore described will cause the tips 199 of said elbowlevers to engage the pins 157 of the gate valves and shift said gatevalves from the position shown in Fig. 13 to the position shown in Fig.12, thus positively cutting olf the ribbon of material issuing from thenozzle. A spring 187a connected to the shaft 187 and to one of thebearings in the bracket 188 acts to turn the vertical rock-shaft 187 inthe direction to oscillate the elbow levers 191, 192 (Fig. 13) to thelimit -prescribed by suitable stops 200. Springs 197 are connected tothe latches 158 and to the link 190 to shift said latches to theposition shown in Fig. 12, against stops 198 carried by the radius arms162, said springs so acting as soon as the latches have been positivelystarted away from engagement with pins 157 by the cam fingers 195hereinbefore described. The spring' 187aL on vertical rock-shaft 187 isfor the purpose of returning the elbow levers 191, 192 to inoperativeposition after the camy 184 has passed.

The short cam side 183 formed on each block 181 is for the followingpurpose: Sometimes it is desired to ll only the forepart of the cavityof the shoe bottom. By setting the camblock 181 half way around from theposition lshown in Fig. 13, the short cam 183 is brought to position toact in the same manner as has already been described for cam 184, uponthe gate valve closing mechanism, the said cam 183 being shaped toabruptly close the gate valves when the shank portion of the cavityreaches the position under the nozzle.

Inasmuch as the composition material em'- ployed is of a lnature whichis liable to stick to the gate valves and be carried back into thebearings so as to interfere to some eX- rtent with the sliding of saidvalves, I provide edge Scrapers 201, as shown in Fig. 12, said Scrapersbeing made of suitable resilient metal with the inner ends bearingagainst the edges of the gate valves and their outer ends secured to themouth of the nozzle by screws v202. By adjusting the screws 202 the'tension or pressure of the scrapers against the gate valves can beadjusted. Scrapers to keep the tops of the slides clear are shown at 203in Figag, attached to the nozzle tp tension screws 204. The ends of thescrapers201, 203 which are to bear against the gate valves projectlthrough suitable openings formed in the nozzle tip. It is sometimesdesirable to vary the thickness of the ribbon that is being forcedthrough the nozzle between the gate valves whenthe latter are open. Forthis purpose (see Figs. 1, 14 and 18) l provide a slide 205 mounted in aslot in the front of the nozzle ust above the gate valves 156, andadjust said slide by means of screws 206 so that said slide may beshifted in f or out to reduce the ribbon of material to a thickness lessthan the space between the front and rear walls of the passageway insaid nozzle. The composition material is of a nature which is quitetough, so that if it were placed in the hopper in solid cakes it mightstop the operation of the machine. By forming the material in blocks, asshown in Fig. 2, and mounting it on the heated arms 142 in a receptaclewhich is kept warm, said material is gradually melted or softened sothat it sloughs off and drops into the lower portion of the hopper,where it is kept in a heated state and is agitated or stirred and isfinally delivered throughan auxiliary chamber having a forcing screw,which is also kept at the necessary temperature to preserve the propercondition of the material for being fed out in ribbon-like form so thatit can belaid in the shoe cavity and also be shaped laterally by theopening and closing of the gate valves so as to properly fit the shoecavity. If desired, I may introduce steam directlyinto the mass ofmaterial in the hopper to aid in keeping it in proper condition, as bymaking the stirrer shaft 136 hollow as indicated by dotted lines in Fig.1,- and leading the steam pipe 207 down through it, the lower` open endof said steam pilpe delivering steam at the bottom of said s a f Y eoperation of the machine is as follows: @ne or more of the blocks a ofthe composition having been placed in the upper portion of the hopper asdescribed, and steam having been turned on, said material slowly meltsand drips into the lower portion ofthe hopper where itis stirred up andkept moving andisgradually forced down through the hopper and throughthe discharge chamber 143, said material being then held under'pressureagainst the gates when the latter are closed, and therefore in conditionto be instantly forcedout by pressureas soon as an approaching jack andlast and shoe thereon causes the gates to v open. rl`he operation ofrolling and ressing the filling material into the cavity ov a shoebottomhas 'been described. As each lasty with a-y shoe thereon reachesposition to fbe removed by the attendant, it is automatically releasedfrom-'its supported position, and after another last with a shoe hasbeen placed upon such jack by the attendant, it

1s supported in position relatively to the toe-rest, so that the next moement of the spider and j aeks in the operation' of rotation described,carries the shoe to be filled to proper position and causes the gatestobe opened, 'the material to be llledinto the cavity, the gates thenclosed, ,the shoe then passing under the rolling and pressing rolls.Since the shoes move in a curved path approximately with the curvatureof the forepart of a shoe last Where the filling is applied, thefillingis applied and the rolling pressure also applied uniformly, withoutrequiringany flattening out of the shoe last, or any movements of theshoe and filling mechanism relativelytoward and from each other.

1. A machine for filling shoe soles, com prising a hopper 'provided Witha delivery nozzle, means for' normally preventing discharge-of fillingmaterial from said hopper, means for carrying a shoe past the deliveryend of 'said nozzle, and means actuated by said shoe carrying'means fortemporarily opening the discharge end of the hopper.

2. A machine for filling shoe soles, comprising a hopperlprovided with adelivery nozzle; means for normally preventing discharge of vfillingmaterial from said hopper, means for carrying a shoe past the deliveryend of. said nozzle, 'means actuated by said shoe carrying means fortemporarily opening the discharge end of the'hopper, compressing meanslyingnormally'out of the path of'inovement of said shoe, and means formoving said compressing means into engagement with the depositedmaterial.

3.- In a machine for filling shoe soles, a receptacle having stirrers,means for supporting a mass of filling material in the upper portion ofsaid receptacle, and means for imparting heat internally to said mass tocause it to drip 'from the support. y

. 4. In a machine for filling shoe soles, a receptacle having stirrers,means 'for' supporting a mass of filling material 1n the 'upper portionof said receptacle, said means comprising substantially horizontal armsto enter recesses in said mass, and means for heating said arms.'

5. A machine for -filling -shoe soes comprising supply mechanism for thefil ing material, means for carrying a shoe past the supply mechanismlto receive a deposit of the material, compressing means lying nor'-mally out ofthe path of movement of the shoe, and means for temporarilybringing said compressing means into engagement with "the shoe tocompact the material after .supply mechanism. to receive a deposit ofthe material, a roll frame, a compressing roll carried thereby, andmeans for imparting independent movements to vsaid roll" frame and saidroll.

- 7 A machine for filling shoe soles, comprising supply mechanism forthe-filling ma-' teriaLfmeans for automatically carryinga shoe past saidmechanism to receive a deposit of the material, and means forautomatically compacting the material after it is deposited, saidcompacting means comprising a pair of rolls for acting on differentportions of the deposited layer.

8. A machine for filling shoe soles, comprising supply mechanism for thelling material, means .for automatically-carrying a shoe past saidmechanism in a curved path tov receive a` deposit of the material, andmeans for automatically compacting the material after it isde'posited,said compacting means comprising a pressing roll having internl meansfor keeping its surface lubricate 9. In a. machine for filling shoesoles, av

rotatable spider having a plurality of jacks, a pawl and ratchetmechanism for imparting step by step rotation to said jacks, a cam forrendering the paWl and ratchet mechanism inoperative, atreadle-controlling said cam, a-nd -means for Asupplying fillingmaterial to shoes carried by said jacks.

10. In a machine for filling shoe soles, a rotatable shaft, jacksattached tosaid shaft, operating mechanism `for imparting step by stepmovement to said shaft, a cam loosely mounted on said shaft and actingto render said operating mechanism inoperative, means for moving saidcam to inoperative position,

' and means for supplying filling. material to shoes carried by said]acks. 1'

'11. A machine for filling shoe soles, comprising ashaft, a spiderhaving jacks mountedl thereon, -a ratchet disk secured to said shaft, apawl for actuating said ratchet, means for actuating said pawl, atreadle, and means whereby release of the treadle Will throw the paWlout of operative position.

12. Ina -machine for filling shoe soles, an intermittently rotatablespider having arms provided with toe rests, jacks pivotally con-- nectedto said arms, means for locking the jacks in position to holdshoessupported therebyA and by the toe rests, andmeans for releasing thelocking means when the jacks reach a predetermined point 'of theirrotation. 4

13. In a machine for filling shoe soles, an

intermittently rotatablel spider having armsprovided with toe rests,jacks pivotally connectedo said arms, means for locking the- ]acks inposition to hold` shoes supported thereby, said means comprisingratchets con-l nected to the jacks, and locking pawls connectedto thespider arms, said pawls having CIV tail pieces, and an abutment locatedin the path of movement of said tail pieces to release .the pawls.

14. In a machine for'filling shoe soles, an intermittentl rotatable shoecarrier having a radially adJustable toe rest, ai movable'jack arm forvsupporting the heellportion of a yshoe with its toe portion bearing onsaid rest, and locking means for said toe rest controlled by movement ofsaid jack arm.

l5. In a machine for filling shoe soles, a shoe carrier comprising anarm having a substantially radial recess, a toe pad having a notchedshank yieldingly mounted in said recess, a detent to engage one of thenotches of said shank, a jack, and connections between said jack anddetent whereby a movement of the jack in one direction will release saiddetent.

16. In a machine for vfilling shoe soles, a shaft having a plurality ofjacks, a disk secured to said shaft, said disk having notches, a brakehub rotatable with said shaft and disk, a brake band for coperating withsaid hub, a lug adapted to enter any ofl the notches of said disk, andmeans for simultaneously applying the brakel band and moving said luginto a notch.

17. In a machine for filling shoe soles, a shaft having a plurality ofjacks, a disk secured to said shaft, said disk having notches, a brakehub rotatable with said shaft and disk, a brake band for coperating withsaid hub, a lu adapted to enter any of the notches of' said disk, a-ndmeans for simultaneously applying the brake band and moving said luginto a notch, said means comprising a three-armedlever, one arm of whichcarries' said lug, another arm being connected to the brake band totighten it, a spring for shifting said lever in a direction to operatethe lug and brake band, and means for co-acting With the third arm ofsaidlever to actuate it.

18. A machine for filling shoe soles, comprising an intermittentlyrotatable series of jacks, means for supplying filling material to shoescarried by said jacks, an oscillating frame carrying a roll forcompacting said filling material, and means under the control of saidoscillating frame for locking said rotatablel series of jacks.

19. A machine for filling shoe soles, comprising a rotatable shaft,meansfor intermittently rotating said'shaft, a jack loosely mounted onsaid shaft, means for connecting saidgjack to said shaft to preventrelative rotation, said connecting means being adjustable to vary theposition of the jack with respect to said shaft, and means for supplyingfilling material to a shoe carried by said jack.

20. A machine for filling shoe soles, comprising a shaft, means forintermittently rotating said shaft, an arm rigidly secured to saidshaft, a spider mounted on the shaft and having one of its arms providedwith a series of holes, means for connecting the rigid arm with any ofSaid holes, acks carriedv4 by said spider, and means for supplyingfilling material to shoes carried by the jacks.

\swivel connection 21. A machine for filling shoe soles, comprising ashoe carrier, means for forcibly supplying filling material to the shoe,a roll for compacting the material supplied to said shoe. and means formoving the roll forward and back upon said material to compact it, meansbeing provided for moving said roll away from Contact with the materialat each end of said movement.

22. A machine for filling shoe soles comprising a 'shoe carrier, meansfor supplying filling material to a shoe supported by said carrier, aroll frame, and independently movable rolls carried by said frame andpositioned to act respectively upon ythe fore part and shank portions ofthe filled shoe sole.

23. A machine for filling shoe soles, comprising a shoe carrier, meansfor supplying filling material to the shoe, a pair of rolls for actingrespectively upon the forepartv and shank portions of the filled shoesole, and means for oscillating said rolls relatively to the shoe sole.

2-L. A machine for filling shoe soles,com prising a carrier for a shoesole, means for supplying filling material to said sole, an oscillatingframe having a roll for compacting the material, and means forcounterbalancing the weight of said oscillating frame.

25. A machine for filling shoe soles, comprising a carrier for a shoesole, means for supplying fillingy material to said sole, and anoscillating frame having a roll for cornpacting the material, said rollhaving a with said oscillating frame.

26. A machine for filling shoe soles, comprising anvintermittentlyrotatable series of jacks, means for supplying filling material to shoesoles carried by said jacks, an oscillating frame having a roll forcompacting said material, means for intermittently locking the series ofjacks, and means whereby said lock is controlled by means of theoscillating frame.

27. A machine for filling shoe soles comprising a receptacle for fillingmaterial hav- -ing an opening or nozzle, a lrotatably mountedshoe'carrier positioned to move a shoe past sald nozzle, gate valves foropenmg and closing saidl nozzle, and means connected with the shoecarrier for opening l said valves.

28. A machine for filling shoe soles, comprising a receptacle having anopening or nozzle, gate valves for controlling said nozzle, a shoecarrier movablepast said nozzle, latches normally disconnected from saidgate valves, and means for voperating the latches by the shoe carrier toconnect them with said gate valves. v

29. A machine for fillingshoe soles, comprising a receptacle having anop'ening or if y 1,201,674`

nozzle, gate valves for controlling saidnoz- Y zle, ka shoe carriermovable 'past said nozzle, latches 1normally disconnected .from- 30. Amachine for filling shoe soles, comprising a shoe carrier, a receptaclehaving a delivery opening or nozzle provided with gate valves, and meansfor opemng the gate valves, said means mcludlng members projectingacross the path of movement of the l shoe carrier, the said shoecarrier. having inclined sides to engage said members.

31. A machine for filling shoe soles, comprising a shoe carrier, vareceptacle having a delivery opening or nozzle provided With gatevalves, means for opening the gate valves, said means including membersprojecting across the path of movement of the shoe carrier, thev saidshoe carrier having inclined sides to engage said members, and pivotedcam strips extending rearwardly from said inclined sides to engage sideportions of the shoe. f

32. A machine for filling shoe soles, comprising a receptacle having adelivery outlet or nozzle, a shoe carrier movable past said nozzle,valves for controlling the delivery through said nozzle, and meansattached to said carrier and constructed and -arranged to actuate saidvalves according to the shape of the sole.

33. A machine for filling shoe soles, comprising a receptacle having adelivery outlet lor nozzle, a shoe carrier movable past said nozzle,Valves for controlling the delivery] through said nozzle, means attachedto said carrier for opening the valves, and independent means forpositively closing said valves, the last mentioned means including arotatable disk having adjustable cam members.

34. A machine. for filling shoe soles, comprising a shoe carrier, areceptacle having an outlet provided With valves for controlling thedelivery of filling material to said shoe, and means Ifor keeping saidvalves clean.

' 35. A machine for filling shoe soles, comprising a shoe carrier, areceptacle having an outlet provided With valves for controllingthedelivery of filling material to said shoe, and means for keeping saidvalves clean, said means comprising s crapers to engage the sides of theValves.

36. Avmachine for filling shoe soles, coml prising a shoe carrier, areceptacle having an outlet provided vWith slide valves for controllingthe delivery of filling material to said shoe, and Scrapers mounted inposition to contact With the edge and top surfaces of the slide valves.I v

In testimony whereof I have afiixed my signature, in presence of tWoWitnesses.l

WINTHROP D. BAKER.

